Mechanical movement.



E. U. AMES.

MECHANICAL MOVEMENT. APPLICATION FILED APR. 2. 1915.

l, 1 55,1 91 Patented Sept. 28, 1915.

2 SHEETS-SHEET I.

COLUMBIA. PLaNouRAnH CO-VIASHINGTON. D. c.

E. U. AMES.

MECHANICAL MOVEMENT. 7 APPLICATION FIQLED APR. 2, 1915.

1 1 55, 1 9 1 Patented Sept. 28, 1915.

2 SHEETS-SHEET 2- ELMER' U. AME8, or'rnrnannnrnm, rnItNsirLvAniA,ASSIGNOR re H. summon COMPANY, or PHILADELPHIA, VANIA.

PENNSYLVANIA, A CORPORATTON 0F PENNSYL- MECHANICAL MOVEMENT.

Specification of Letters Patent.

Patentecl. Sept. 28, 1915.

Application; tiled Apr-112, 915. Serial Nb. 18,801.

To all whom it may concern: C I Be it known that I, U. Atrns a, citizenof the United States, residinginfl Philadelphia, Pennsylvania, haveinvented the liIechanical Movement ofwvhich the following is aspecification.

One object ofmy inventionis to. provide mechanism for changing rotary toreciprocating motion which shall have its parts so. arranged as to movethe reciprocated memher at the same speeds in the corresponding. partsof its opposite strokes, the invention contemplating a relatively simpleand efficient combination of parts for accomplishing the abov'edesiredend. A These objects andother advantageous ends I secure as hereinafterset forth, reference being had to the accompanying drawings, in which,

Figure 1 is aside elevation, .partly in section, illustrating; thepreferred form of my invention as designed forfappl-ication to aknitting machine; Fig. Qis a vertical section on the lined-a, Fig. 1:;Fig. 3is an enlarged side" elevation of the mechanical movementconstituting my invention; F ige I is a fragmentary elevation of aslightly modified form. of part of my device; and

Fig. 5 is a perspective view of one ofthe sliding blocks p i v In theabove drawings 1 represents a s'uit- I ,able supporting frame'in whichis ou-rnaled a main shaft 2 loosely carryinggears3 and 4 of which thelatter is driven from a. shaft having on it fast pulleys 6 and 7 and aloose pulley 5, there being an operating handle projecting from the sideof said. pulley. 7.-

By means of a clutch member/.8 slidable on the shaft 2, this lattermaybe'connected to a gear 3 or to a gear 9, there being also fixed. tosaid shaft 2 a beveled gear 10 which meshes with a beveled pinion 11fixed to a shaft 12, designed in the present instance-to operate aknitting machine.

In order that this latter shaft may be alternately driven in oppositedirections as required at certain times in the operation of a circularknitting machine, I provide mechanism whereby the continuous rotarymovement of the gear 3 shall be changed into a rotary movementalternately in opposite directions of the gear 9. For this purpose Imount on the frame a stud or fixed spindle 13 on which is rotatablymounted a sleeve or hollow shaft 13 to "which is fixed a gear 14 driventhrough an intermediate I gear 15 from the gear 3. Also fixed to this,

sleeve is a crank 16 having a radial slot 17 and counter-balanced by aweight 18. Mounted in the slot 17 is a block 19 rotatably mounted on apin 20 fixed to a second crank 21,,Wl110l1- 1I1tl18 case illustrated, isshown as integral with a third spindle 22 so' journaled in the frame 1that its center-lineis a definite distance above the center line of thesleeve 13 carrying the crank member. 16. On the pin 20 between the twocranks; is mounted a second block 23 slidable'in a slot 2% which extendsradially of an elongated arm 25 mounted to oscillate upon: a pivotspindle 26 ournaled in the lower part of the frame 1. The outer end of,this arm 25 carries a segmental rack 27 which meshes with the teeth ofthe gear 9'.

As will beii-nderstood by those skilled in the art, if the pin 20 wasfixed in the crank 16, the rotation of the sleeve 13" would cause-the-arm- 25 tooscil-late on the pivot 26 aslthe block moved. up anddown in the head 24, although the stroke of said arnr in one directionwould be caused by less than half a revolution of said crank member,while the stroke in theopposite direction would require the remainder}of the crank revolu tion, with the result that the speed of rotation ofthe gear 9 at different points of its cycle fmovement in one directionwould be different from: its speed at the corre sponding parts of itscycle of movement in the opposite directiom By my invention, at

those times when the crank member: 16 is. moving in the-:lowerpart of tscircle of revolution,- the crank 21 causes thepin 20 and hencethe blockthereon; to move/nearer the center of the shaft 18 and then torecedetherefrom, so that the tendency of the crank member 16 to causea certainvariation of the speed-of movement of the arm 25, while the former isturning through the lower half of its circle of movement, iscounteracted by the movement of the pin 20 toward the shaft 13. On theother hand, when moving through the upper part of its path, thevariation in the speed of movement of the arm 25 due to the sliding ofthe block 23 in the outer part of the slot 24, is counteracted by themovement of the block 19 by the crank 21 in the outer part of the slot17 where it is farther from the center of the shaft 13. As a result ofthis arrangement of giarise the arm is moved With the same speed at anygiven part of its strokein one direction as that Which it has at thecorresponding point of its stroke in the opposite direction, and

'thus'obviates uneven Work by the machine connected to the shaft 12. Inthe apparatus illustrated, when the clutch member 8 -is thrown intoengagement with the clutch 'member carried by the gear'3, the shaft '2and hence the shaft 12 connected thereto is V driven continuously in onedirection. When,';

on the other-hand, said'clutch member is thrown to engage the clutchmember, forming partof the gear 9, this latter is rotated alternately inopposite directionsby the apparatus above described ;-that isto say, thesleeve 13 is turned through the gears 3,15 and 1%,- thus rotating thecrank member '16 and oscillating the arm25, which through its rack 27turns the gear 9 alternately in opposite directions.

Obviously 1t'1 s immaterial how the power is transmitted from theoscillating'arm 25,

, since the machine to be driven may-be con- 'nected to it in anysuitablemanne'r; other than by the rack 27 and gear 9. As illus tratingsuch amodificationl have shown in U Fig.4 a rod 30 pivoted to the upperend of the arm 25 and by it given a reciprocatingv motion suchasrequired in certaintypes or prmting presses, flat knitting machines,etc.

1. The combination of a driving crank;

an arm oscillated thereby andpivotally held from other than oscillatorymovement;

mechanlsm, driven from sald arm; and means for causmg the speed of saidarm to be the same in corresponding parts of its strokes in-oppositedirections.

*2. The combination of tWo eccentrically 'mounted cranks; a pin'fiXedtoone crank and'shdably' engagingtheother; an oscillatory member alsoengaged bysaidpin; means for'driving one of the cranks; and drivenmechanism connectdtdthe oscillatory memben 3. The combination of adriving :crank: havm'g a radial slot; a second crank mount-v edeccentrically to thefirst crank; a'pin carried by the second crank andslidable in the Copies of this patent may be obtained for directions. 1

.slot of the first crank; a pivotally'mounted arm having aradial slotfor the reception of the pin; and drivenmechanism'connecb' ed to saidarm. a I

e.- The combination of two eccentrically mounted cranks; a pivotallymounted'arm having a radial slot and operative between i the cranks; apm fixed to one of the cranks extending throughthe slot of the armandslidably engaging the other crank; means blocks mountedon the pinand'slidable in the slots ofthe other crank and of thelarm respectively;means "for turning the slotted' crank; and'mechanism drivenby theoscillatory arm. i r Y 6. The'comb nation'of a driving crank; an

by the dri ving crank and operativeon the arm tocause the speed thereofto be the same I f v in correspondmg parts of 1ts strokes in oppositedirections'. i

-7. The combinat on of a drivingshaft turnl'ng'in one dlrection; adrlven shaft; a

oscillatory'arm;mechanism actuated from i "sald arm; with aregulatingcrank operated ft s e0, 7 gear; a crank turned by the driving shaft; apivoted arm having a rack thereon meshingvvith said gear; meansfortransmitting" ing a devicefor causing the speed of the latmotion fromthe crank to said arm, }inc1ud-, w

ter to be thejsame in corresponding parts of to said gear.

shaft of a knitting machine of means for 'turning said shaft first inone direction and" then in the other direction, the same include ing' anoscillatoryarm; a crank forv oscillating said arm; and means for causingthe its strokes in opposite directions; and a p "clutch forconnecting'the driven shaft at ill' either to the driving shaft directlyor v 8. The combination ,With the driving" speed of the; to. be the samein 'corre ELMER U; AMES.

spon'ding parts of its strokes inopposite five 1 y dd essing theCommissioner of iatents, 7 Washington, D. 0'. 1 i

